09 May 2017 Marysville, WA - The NHRDA is proud to announce South Bend Clutch is sponsoring the Sled Pull Pro Stock class at the Oklahoma Diesel Nationals on May 19th & 20th at Tulsa Raceway Park located in Tulsa, Oklahoma. This is a must see event for all diesel and truck fans! The Oklahoma Diesel Nationals is the fourth event for both the Hot Shot's Secret Diesel Drag Racing Series and the NHRDA Diesel Sled Pulling Series. Tickets are available online! Use the promo code HOTSHOTS and save 20% on admission. Click here to buy tickets now!